$OpenBSD: patch-src_modules_graphic_ssggraph_CMakeLists_txt,v 1.3 2016/09/20 18:18:52 pascal Exp $
--- src/modules/graphic/ssggraph/CMakeLists.txt.orig	Mon Apr 18 17:37:09 2016
+++ src/modules/graphic/ssggraph/CMakeLists.txt	Tue Sep 20 01:28:41 2016
@@ -49,6 +49,10 @@ IF(COMMAND CMAKE_POLICY)
     CMAKE_POLICY(SET CMP0003 NEW)
 ENDIF(COMMAND CMAKE_POLICY)
 
+IF(UNIX)
+    INCLUDE_DIRECTORIES(${X11_INCLUDE_DIR})
+ENDIF(UNIX)
+
 IF(WIN32)
     # DLL export stuff under Windows (to avoid .def file)
     ADD_DEFINITIONS(-DSSGGRAPH_DLL)
